<template>
  <div class="app-container">
    <el-form label-width="120px">
      <el-form-item label="属性名称">
        <el-input v-model="attr.name" />
      </el-form-item>
      <el-form-item label="属性录入方式:">
        <el-radio-group v-model="attr.inputType">
          <el-radio :label="0">手动录入</el-radio>
          <el-radio :label="1">列表中选择</el-radio>
        </el-radio-group>
      </el-form-item>
      <el-form-item label="属性值可选值:">
        <el-input
          v-model="attr.selectList"
          :autosize="true"
          type="textarea"
        ></el-input>
      </el-form-item>

      <el-form-item>
        <el-button
          :disabled="saveBtnDisabled"
          type="primary"
          @click="saveOrUpdate"
          >保存</el-button
        >
        <el-button @click="back">返回</el-button>
      </el-form-item>
    </el-form>
  </div>
</template>

<script>
import api from "@/api/product/attr";

const defaultForm = {
  id: "",
  name: "",
  inputType: "",
  selectList: "",
  attrGroupId: "",
};

export default {
  data() {
    return {
      attr: defaultForm,
      saveBtnDisabled: false,
    };
  },

  // 监听器
  watch: {
    $route(to, from) {
      console.log("路由变化......");
      console.log(to);
      console.log(from);
      this.init();
    },
  },

  // 生命周期方法（在路由切换，组件不变的情况下不会被调用）
  created() {
    console.log("form created ......");
    this.init();
  },

  methods: {
    // 表单初始化
    init() {
      //
      if (this.$route.params && this.$route.params.id) {
        const id = this.$route.params.id;
        this.fetchDataById(id);
      } else {
        // 对象拓展运算符：拷贝对象，而不是赋值对象的引用
        this.attr = { ...defaultForm };
        this.attr.attrGroupId = this.$route.query.attrGroupId;
      }
    },

    saveOrUpdate() {
      this.saveBtnDisabled = true; // 防止表单重复提交
      if (!this.attr.id) {
        this.saveData();
      } else {
        this.updateData();
      }
    },

    // 新增
    saveData() {
      api.save(this.attr).then((response) => {
        //
        if (response.code) {
          this.$message({
            type: "success",
            message: response.message,
          });
          this.$router.push({
            path: "/product/attr/list/" + this.attr.attrGroupId,
          });
        }
      });
    },

    // 根据id更新记录
    updateData() {
      api.updateById(this.attr).then((response) => {
        if (response.code) {
          this.$message({
            type: "success",
            message: response.message,
          });
          this.$router.push({
            path: "/product/attr/list/" + this.attr.attrGroupId,
          });
        }
      });
    },

    back() {
      this.$router.push({
        path: "/product/attr/list/" + this.attr.attrGroupId,
      });
    },

    // 根据id查询记录
    fetchDataById(id) {
      api.getById(id).then((response) => {
        //
        this.attr = response.data;
      });
    },
  },
};
</script>
